There are 5 states that have Confederate imagery in their flags

The U.S. flag and South Carolina state flag flies at half staff to honor the nine people killed in the Charleston murders as the confederate battle flag also flies on the grounds of the South Carolina State House.
Reuters/Jason Miczek
South Carolina isn't the only state that has an issue with the Confederate flag.

According to The New York Times, Mississippi voters overwhelmingly supported keeping the flag as-is in a 2001 referendum. At the time, the state's electorate backed the current flag by a two-to-one margin.

The other Southern states were much more subtle in how they Incorporated the Confederacy into their state flags, The Post reported.

Alabama and Florida

Alabama's state flag "was designed to evoke the battle flag of the Alabama infantry in the Civil War." The Floridian flag looks almost identical but with the state's seal on top of it.

Arkansas

The blue star above the text in this flag reportedly represents the Confederacy; the three lower stars represent the countries that have claimed Arkansas since its colonial beginnings: France, Spain, and the United States.